Each of the following is a reaction that occurs in the cells of the body. Identify which is exothermic and endothermic.

Question

Succinyl−CoA+H2O→succinate+CoA+8.9kcal

Glucose+Pi+3.3kcal(14kJ)→glucose−6−phosphate

Answer 1

Succinyl−CoA + H2O → succinate + CoA + 8.9kcal

Glucose + Pi + 3.3kcal (14kJ) → glucose−6−phosphate

Look to see where heat (cal, kcal, J, kJ, etc) is located. If it is on the right side of the equation (as a product), then the reaction is EXOTHERMIC (heat is released). If it is on the left side of the equation (as a reactant), then the reaction is ENDOTHERMIC (heat is added or absorbed).